linux中的systemd服务出错(Ubuntu)

时间:2017-07-19 06:37:12

标签: python linux ubuntu systemd

我正在尝试在Ubuntu中创建服务,但我收到错误。

我在下面写了代码 -

FileSystemWatcher.py

import requests
import json
import logging
import sys
import os
import datetime
from watchdog.events import PatternMatchingEventHandler


class DirectoryChangedHandler(PatternMatchingEventHandler):

    patterns = ["*.json","*.csv"]

    logFileName = datetime.datetime.now().strftime('%Y%m%d_log.log')
    script_dir = os.path.dirname(__file__)  # <-- absolute dir the script is in
    rel_path = "log/"+logFileName
    abs_logfile_path = os.path.join(script_dir, rel_path)

    appConfigFilePath = os.path.abspath('config/app_config.json')
    with open(appConfigFilePath) as data_file:
        config = json.load(data_file)
    logging.basicConfig(filename=abs_logfile_path, format="%(asctime)s - %(name)s - %(levelname)s - %(message)s", level=logging.NOTSET)

    def process(self, event):

        print event.src_path, event.event_type
        try:

            filelist = [('files', open(event.src_path, 'rb'))]
            postUrl = self.config["apiBaseUrl"].encode('utf-8')+self.config["fileUplaodApiUrl"].encode('utf-8')
            uploadResponse = requests.post(postUrl, files=filelist)
            if uploadResponse.status_code == 200:
                print "Upload Successful - ", event.src_path
            else:
                print "Upload Failed - ", event.src_path
        except:
            print "Unexpected error:", sys.exc_info()[0]
            pass

    def on_modified(self, event):
        self.process(event)

    def on_created(self, event):
        self.process(event)

workflow.py -

#!/usr/bin/python2.7

import sys
import time
from watchdog.observers import Observer

import FileSystemWatcher as fSystemWatcher


if __name__ == '__main__':
    args = sys.argv[1:]
    observer = Observer()
    observer.schedule(fSystemWatcher.DirectoryChangedHandler(), path=args[0] if args else '.', recursive=True)
    observer.start()

    try:
        while True:
            time.sleep(1)
    except KeyboardInterrupt:
        observer.stop()

    observer.join()

(/lib/systemd/system/FileWatcherSystemd.service)

[Unit]
Description=FileChangeService

[Service]
Type=forking
WorkingDirectory= /home/ashish/Documents/FileSystemWatcher
ExecStart= /home/ashish/Documents/FileSystemWatcher/workflow.py
Restart=on-failure

[Install]
WantedBy=multi-user.target

但是我得到了以下错误 -

  

FileWatcherSystemd.service - FileChangeService已加载:已加载   (/lib/systemd/system/FileWatcherSystemd.service; enabled; vendor   预设:已启用)活动:无效(死机)(结果:退出代码)自   周三2017-07-19 10:44:39 IST; 8分钟前过程:6552   ExecStart = /家庭/阿希什/文档/ FileSystemWatcher的/ FileSystemWatcher.py   (code = exited,status = 203 / EXEC)主PID:6552(代码=退出,   状态= 203 / EXEC)

     

Jul 19 10:44:39 Ashish-PC systemd [1]:FileWatcherSystemd.service:Unit   进入失败状态。 7月19日10:44:39 Ashish-PC systemd [1]:   FileWatcherSystemd.service:结果'exit-code'失败。 7月19日   10:44:39 Ashish-PC systemd [1]:FileWatcherSystemd.service:Service   延迟时间结束,调度重启。 7月19日10:44:39 Ashish-PC   systemd [1]:停止FileChangeService。 7月19日10:44:39 Ashish-PC   systemd [1]:FileWatcherSystemd.service:重复启动请求   很快。 7月19日10:44:39 Ashish-PC systemd [1]:无法启动   FileChangeService。

我不知道我在FileSytemWatcher.pyFileWatcherSystemd.service

中做错了什么

1 个答案:

答案 0 :(得分:1)

尝试将您的服务类型更改为简单。所以

type=simple

您的脚本似乎没有分叉并退出。如果您的服务类型是分叉,则systemd会假定已启动的进程分叉,在后台运行并退出。它一直等到脚本运行完毕。

您的脚本未退出,systemd会检测到此错误并为您提供超时错误。你的脚本似乎在无限循环中等待键盘中断。这种脚本可以像“简单”一样运行。这意味着systemd只是在后台启动脚本并继续启动序列而无需等待任何事情。